Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3794b30ce6e298b…

MALICIOUS

PDF

72.7 KB Created: 2021-02-03 02:52:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 669b5644d9287584f370e84501b5e066 SHA-1: db7f212e63f4b7b36a205078340b86df28632c4f SHA-256: d3794b30ce6e298bf7423f5a99b8064df8b2dc6d72867de329e608335e2fac5a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://druttle.ru/aws?utm_term=ebola+virus+disease+in+uganda+situation+report PDF link annotation
    • https://pefisidedufe.weebly.com/uploads/1/3/4/9/134902532/9cf2d4.pdfIn PDF document text
    • https://cdn.sqhk.co/fasotaluvose/jjjfjiC/31933086269.pdfIn PDF document text
    • https://kelesive.weebly.com/uploads/1/3/0/8/130874426/sunepazipaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408336/normal_600aa1856f6b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424632/normal_5ff2f6dd4237f.pdfIn PDF document text
    • https://waxalema.weebly.com/uploads/1/3/4/3/134364729/e1bc6.pdfIn PDF document text
    • https://zajefogana.weebly.com/uploads/1/3/1/4/131407312/2815150.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446395/normal_5fec7e31e5903.pdfIn PDF document text
    • https://gogukosujupubof.weebly.com/uploads/1/3/5/3/135317205/papekozawaxisekawujo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408873/normal_5fd2a8c2b8273.pdfIn PDF document text
    • https://cdn.sqhk.co/pozuwifofub/18vji4y/driving_without_probation_plate.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://demunoj.epizy.com/badewadezujabu.pdfIn PDF document text
    • http://lemujiv.epizy.com/wejonudubu.pdfIn PDF document text
    • http://vevemaj.rf.gd/old_grandma_meme_template.pdfIn PDF document text
    • http://kejufunekopal.epizy.com/kevogozijixavu.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/24320456241.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/41645691125.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/89488405514.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DD 5284 bytes
SHA-256: 3178a5d9bd5b7987e500e562522f3bee98fa3607b90eb598bbfdf33c9fb13059
font_01_sfnt_off0000f2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E9 10148 bytes
SHA-256: 4c23f176511bc2774f6fea046439f6f01d049aebbe34df2c8de78853d3e5174e